Gas-burner.



W. K. TWOMEY.

V GAS BURNER. APPLICATION FILED was. 1915.

M00000 0 115121.: "7.11. 1 may!!! Illll'."

Patented Sept. 26,1916.

y it strikes against 1 UNITED STATES PATENT OFFICE:

WILLIAM K. TWOMEY, CHICAGO, ILLINOIS.

GAS-BURNER.

Specification of Letters'latent.

Patented Sept. .26, 1916.

I Application filed August 9, 1915. Serial No. 44,406.

To all whom it may concern:

Be it known that I, WILLIAM K. Two EY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Gas-Burners, of

which the following is a specification.-

This invention pertains to gas burners in 1 general but concerns morefparticularly features of novelty and advantage 1n devices of this character resulting in a better 1ntermixture of the ingredients of the gaseous mixture employed whereby to obtain a more complete combustion.

The main feature of this invention is the construction of the burners in such a way as to produce or augment the pulsations or throbbings in the pressure'of the mixture elements that a better and more complete.

combustion will occurl In some instances it is desirable that these flames play against or bombard a wall to eflect the same general result. In the preferred embodiment of the invention the burner is so shaped or constructed that the gaseous mixture entering abutment or deflector, breaking up the m parts of somewhat difi'ering pressures, resulting in fluctuations in the pressures at the jets and variations in the flames. In order to still further, disturb or unequalize the pressure conditionsin the burner it is conveniently provided with supplemental or secondary jets or perforations at which throbbing or palpitating flames burn. In a word, one of the leading or prime ob ects of the invention is to produce tremulous, wavering, beating flames and variable pressure conditions, to improve the combustion of the associated gaseous elements of the mixture.

A desirable embodiment of the invention is illustrated in the accompanying drawings forming a part of this speclfication and throughout the various views of which l1ke n general current into.

tween such reference characters designate the same 7 parts. I

' In these drawings-Figure 1 is a vertical cross-section of a burner incorporating this invention; Fig. 2 is 'a plan view of the burner proper; Fig. 3 is a central vertical cross-section through the same.

In this appliance the inlet pipe 9,0f which only a fragment is shown, has the hollow burner attached to its upper end, such burner comprising a suitably-shaped sheetmetal'base or bottom 10 for a depending circular flange 11, adapted to receive the feed pipe, and having a marginal, upstanding, shallow flange 12. In this shell the sheetmetal top 13 fits, the latter having a-circu lar edge flange. 14, snugly received in the correspondingly shaped flange 12. Above flange 12 this Wall 14 has a row of a relatively large number of equal spaced jet openings or ,which additional or complementary fluttering or quivering flames burn, theseassisting inproducing the pumping or throbbing of the gases and flames at the main jets 15.

This burner of itself, and without the. additional parts described below, may be successfully and satisfactorily employed for securing an efficient combustion of the gaseous mixture. It operates substantially as lol lows: The incoming fluid mixture, for instance as andair, through the pipe or tube I 9 is o practically uniform pressure. this stream of gas strikes the under surface of the inverted-cone deflector 17 it is broken up into currents or parts of different pressures, due to the conflict and interactionbeparts.- This action may be likened to the playing of a stream of water from a hose against a wall. Such stream is broken up into parts which spatter in all directions and are splashed to different disacting upon them. During such scattering tances because of the widely different forces or spattering of the water its. various parts strike one another, react and rebound, and cause a considerably disturbed and agitated condition of the water as a whole. In somewhat similar manner the gaseous mixture is acted upon in impinging upon the deflector. Thenthese. various currents of gas pass upwardly along the inner face of the deflector,

.16 and issue in downwardly directed streams 'or jets from the apertures 15. at which they burn. Their combustion creates upwardly acting air currents around and adj acent to the flames which neutralize or overcome their downward pressures so that the flames stand out substantially horizontally, at least adjacent to the burner. As has been explainedydue to the fluctuating pressures,

these flames pump or pulsate, and this action is taken advantage of in the individual burning flames to secure a better commingling of the gaseous ingredients of the mlxture and a more thorough or complete combustion. It should be noted also that the flames'spread as they extend away from the burner and that they impinge upon and become intermixed with one another. This throbbing or beating action of the flames and their gases creates a better intermixture of the gases when they impinge upon or mix with those of the next jet, in this way se curing a more complete combustion because of such better mixing. Stated in another way, the pulsations, the collisions of the flames and gases and their intermixing, all combine to produce a more complete and effective combustion. Sometimes it is desirable, in order to produce this complete commingling of the gases, to let the flames play upon a wall to cause a greater disturbance and intermixture of the gases, and in some cases it is even desirable to employ a second combustion to complete the partial combustion carriedon by such burner.

In Fig.1 I have shown such an appliance The burner is of the same construction as that described above and is incased within a shell or box comprising a base 19, having an aperture 20 for the admission of air from the bottom and for the-accommodation of the pipe or tube 9. It also has a circular wall '21 disposed concentric to the burner proper and of such size that the currents of gas and flames will strike against its inner face. On lugs 22, rising from the top edge of the shell 21 I provide a top or cover the edge of the wall 21. In the operation of this structure the combustion at the burnertakes place as described above, but its flames and gases strike the wall 21 and become more thoroughly intermixed, suiiiciently so that the products of partial combustion are now capable of further burning, and such secondary combustion occurs just beneath the plate 23 at the top edge of the wall 21. It will be understood that by thus remixing and commingling the heated products of partial combustion they may 'be again burned to eflect a more complete combustion. It will also be appreciated that the pulsating action of the flames on the wall facilitates such further intermingling and mixing of the gases. v

lVhile I have presented herein two embodiments of the invention, which have been illustrated in detail and described more or less minutely, it is to be understood that the invention is not limited to the precise and exact structure and features of these devices, because many minor mechanical changes may be made therein without de-.

parting from the essence of the invention and without sacrificing any of its real benefits and advantages. The burners as shown and described are presented merely as illustrations of desirable ways of embodying the invention in practicable form and should. not be considered in a restrictive sense.

I claim:

1. In an appliance of the character desig-.

2. A gas burner having an inlet for the.

gaseous mixture, main burner apertures through which the gaseous mixture escapes and at which the mixture burns, and means to cause a pulsation of the flames burning at such apertures, substantially as described.

3. In an appliance of the character designated a gas burner havin an inlet for the gaseous mixture, main Imurner apertures through which the gaseous mixture escapes and at which the mixture burns, and means to cause a pulsation of thejflames burn'ng at such apertures in combination with :an

abutment wall against which such pulsating.

such mixture strikes and adapted to cause pulsations in the flames burning at such apertures, substantially as described.

5. In an appliance of the character designated a gas burner having an inlet for the gaseous mixture and one or more main burner apertures through which the mixture escapes and at which the mixture burns, and means in the path of the incoming mixture against which such mixture strikes and adapted to cause pulsations in the pressure of the mixture at such aperture or apertures in combination with an abutment wall against which the flame or flames of said aperture or apertures impinge, substantially as described.

6. A gas burner having an inlet'for the gaseousmixture and main burner apertures through which the mixture escapes and at which it burns, and one or more supplemental perforations at which a portion of the mixture escapes and burns and located to cause pulsations of the flames at said main apertures, substantially as described.

7 In an appliance of the character designated a gas burner having an inlet for the gaseous mixture and main burner apertures through which the mixture escapes and at which it burns, and one or more supplemental perforations at which a portion of the mixture escapes and burns and located to cause pulsations of the flames at said main apertures, in combination with an abutment wall against which said main flames impinge, substantially as described.

8. A gas burner having an inlet for the gaseous mixture, one or more main apertures through which the mixture escapes and at which it burns, means in the path of the incoming mixture against which the mixture strikes and adapted to cause pulsations in the flames burning in' such aperture or apertures, and one or more supplemental perforations at which a portion of the mixture escapes and burns and located to augment the pulsations of said main flames, substantially as described.

-9. In an appliance of the character designated, a gas burner having an inlet for the gaseous mixture, a plurality of apertures through which the mixture escapes and at which it burns, means in the path of the incomin mixture against which such mixture stri es and adapted to cause pulsations in the flames burning at such apertures, and one or more supplemental perforations in the burner at which a portion of the mixture escapes and burns and located to augment the pulsations of said main flames, and an abutment wall against which said pulsating main flames" impinge, substantially as described.

10, A hollow gas burner having an inlet for the gaseous mixture, one or more main burner apertures at the outer portion of the burner, and adepression inthe wall of the burner in thepath of the incoming mixture against which such mixture strikes, causing pulsations in the flames of said apertures, said apertures being a substantial dis tance below the top of said depression, whereby the gaseous mixture in passing from the inlet to said apertures makes a general reversal in its direction of flow, substantially as described.

11. A substantially round, hollow gas burner having an inlet for the gaseous mixture, one or more main burner apertures at the outer portion of the burner and a substantially inverted cone shaped depression in the wall of the burner in the path of the incoming mixture against which such incoming mixture strikes, causing pulsations in the flames at said apertures, said apertures being a substantial distance below the base of said depression, substantially as described.

12. A hollow gas burner having an inlet for the gaseous mixture, one or more apertures at the outer portion of the burner, a depression in the wall of the burner in the path of the incoming mixture against which such entering mixture strikes, causing pulsations in the flames at said apertures, and secondary apertures near the top of said depression at which secondary flames burn, augmenting the pulsations of said main flames, substantially as described. I

13. A hollow gas burner of general conical form having an inlet at the bottom and opposite said inlet a depression in the burner top-wall of general inverted conical shape against which the incoming gaseous mixture impinges, and main burner apertures in the side-Wall of the burner a substantial distance below the top or base of said depression, whereby to secure a general reversal of direction of flow of the mixture through the burner and a pulsation of the flames at said apertures, substantially as described.

WILLIAM K. TWOMEY. 

